Air conditioner



R. W. SMITH Feb. 16, 1937.

AIR CONDITIONER Filed Sept. 4

N 2 ma. mmh 3. L Ff YD A TTORNEYS.

Patented Feb. 16, 1937 l UNITED STATES PrvrENTv oFFlcr:

3 Claims.

The invention relates to air conditioners and it has for its object to provide a cheap, simple and emcient apparatus by which the temperature of the air in or supplied to a building or other enclosure may be lowered or altered.

Another object is to provide an air conditioning apparatus which, for its heat exchange, makes use of the water system in the building or 'structure where the apparatus is installed.

Another object is to provide an air conditioning apparatus in which a commercial automobile radiator forms the heat exchanging device in which water from the water system in the structure where the apparatus is installed is caused to circulate and through the open spaces of which a draft of air is caused to travel. i

Other objects and advantages will be set forth hereinafter.

The invention consists of a low pressure radiator, a water supply connected to the radiator and circulating therein and a fan to cause air to travel through the open spaces in the radiator.

In the accompanying drawing Figure l is a front view of a device embodying the invention, the louvres and most of the core being omitted.

Fig. 2 is a cross-section of the device.

Fig. 3 is a sectional elevation of a fraction of the radiator.

Fig. 4 is a side elevation of a modified form of the invention.

Fig. 5 is a side elevation of another modified form of the invention.

Fig. 6 is a side elevation of another modified form of the invention.

Referring to the illustrative embodiment of the invention, and rst to Figs. 1 and 2, I is an` open ended case in the forward portion of which is installed a low pressure radiator 2 that has a high degree of heat transference and consisting of the core 3 and the upper tank 4 and lower tank 5, with both of which tanks the core communicates. A water connection 6 leads from the water system in the building Where the device is installed, and is connected to the lower tank 5. Preferably this connection 6 is extended upwardly in U form 'I so that its upper bend is located adjacent to or above the bottom of the upper tank 4. This extension is useful, when hot water circulates in the core, to balance the pressure and assure the ow in the entire core. A waste line 21 is connected to the upper tank and leads to the drain or other point of discharge. The water circulates from the tank 5 upwardly through the zig zag tubes 9 of the core (Fig. 3) and the corrugated ns I0 between the tubes transfer the temperature of the tubes to the air passing between the tubes and about the ns. A pan II is installed beneath the tank 5 to collect any condensation that may gather on the core and a conduit I2 may be connected to the pan to carry away such condensation, or the conduit I2 may be omitted and the pan may be removable for periodical emptying as preferred.

The core is formed of very thin metal so that its coefficient of heat transfer or exchange is high.

Louvres I3 may be installed infront of the radiator-and may be adjusted to direct the air flow as desired.

A baflie IQ is fixed in the case rearwardly of the radiator and extends entirely around the case. Rearwardly of the baiile is mounted an electric fan or blower I5 by which a draft of air is forced through the radiator core and cooled by the walls of the tubes and the ns.

In Figs. 4 and 5 the case I6 is shorter than the case I and the fan or blower I5 is disposed outside the case. In order to direct the air through the radiator I may attach a conduit Il (Fig. 4) to the case, as by a draw string I8 and also attach it to the guard I9 of the fan by a similar string. In this embodiment the conduit may be formed of a suitable fabric. In Fig. 5 the conduit 20 is formed of rigid material and at its rear end is secured'a resilient ring 2l against which the guard of the fan may abut.

In Fig. 6 I provide hooks 22 on the radiator carrying case 23 by which the case is attached to the guard of the fan and an adjustable support 24 is provided at the bottom of the case by which the height of the case relatively to the fan is adjusted. l

In all the views water from the water system is circulated upwardly in the radiator core to cool or heat the core and a draft of air is forced through the openings or open spaces in the core to be cooled or heated by the core.

The device is portable and may be set up wherever there is a waterysupply and electrical current. It is most economical of construction and in operation.

What I claim is:

1. A device of the class described comprising a radiator having a nest of vertical conduits and connecting fins, tanks connected to the op and having its bend above the plane '0f the bottom of the upper tank and means to direct air under pressure past and in contact with the walls of the passages.

3. A device of the class described comprising an open front and back casing, a radiator mounted in the casing, means to cause a heat transfer agent to ow through the radiator, a fan adjacent to the casing and having a guard thereon and a resilient member engaged between the guard and the margin of the rear end of the 10 casing.

RULO WAYNE SMITH. 

